Home / 55,587.31-76,630.35-39,644.08

Finding the Fourth Proportional to 55,587.31, 76,630.35 and 39,644.08

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Solution

The fourth proportional to 55,587.31, 76,630.35 and 39,644.08 is: 54,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,587.31 : 76,630.35 = 39,644.08 : x
  2. Step 2: Convert to fraction form
    55,587.31/76,630.35 = 39,644.08/x
  3. Step 3: Cross multiply
    55,587.31x = 76,630.35 × 39,644.08
  4. Step 4: Simplify right side
    55,587.31x = 3,037,940,113.96
  5. Step 5: Solve for x
    x = 3,037,940,113.96/55,587.31
  6. Step 6: Final answer
    x = 54,651.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.